Question

........... is a suspension of microorganism which when added to the soil, it colonises the rhizosphere.

• A. Biofuels
• B. Biofertilizer
• C. Biodiesel
• D. None of the above

Answer 1

The correct option is B Biofertilizer

Biofertilizer is a suspension of live microorganisms. These can be added to the soil in the form of suspension which is sprayed on the plants. This suspension can also be added to the soil before the cultivation of plants. These microorganisms grow and colonize the region near the roots of the plants which is called as the rhizosphere. The microorganisms grow and break down the organic compounds in this region. The compounds and certain chemicals are released near the roots which help in the growth of plants.

Thus, the correct answer is option B.